05 2019 档案
摘要:Ancient Berland Circus CodeForces - 1C 如今,Berland 的所有马戏表演都有一个圆形的竞技场,其直径为 13 米,但过去的情况有所不同。 在古代 Berland,马戏表演的竞技场的形状为 (等角) 正多边形,其尺寸和角的度数在各马戏表演中可能各不相同。在竞技
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摘要:Fish Weight CodeForces - 297B It is known that there are k fish species in the polar ocean, numbered from 1 to k. They are sorted by non-decreasing or
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摘要:Trees in a Row CodeForces - 402B The Queen of England has n trees growing in a row in her garden. At that, the i-th (1 ≤ i ≤ n) tree from the left has
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